38735865 has 24 divisors (see below), whose sum is σ = 76734528. Its totient is φ = 17707680.

The previous prime is 38735863. The next prime is 38735867. The reversal of 38735865 is 56853783.

It is an interprime number because it is at equal distance from previous prime (38735863) and next prime (38735867).

It is not a de Polignac number, because 38735865 - 2¹ = 38735863 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 38735865.

It is not an unprimeable number, because it can be changed into a prime (38735863) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61171 + ... + 61800.

It is an arithmetic number, because the mean of its divisors is an integer number (3197272).

Almost surely, 2^38735865 is an apocalyptic number.

38735865 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38735865 is a deficient number, since it is larger than the sum of its proper divisors (37998663).

38735865 is a wasteful number, since it uses less digits than its factorization.

38735865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122989 (or 122986 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 38735865 is about 6223.8143449174. The cubic root of 38735865 is about 338.3538216836.

The spelling of 38735865 in words is "thirty-eight million, seven hundred thirty-five thousand, eight hundred sixty-five".